Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 14 h = _____ min
- 9 620 m = _____ m (Give the answer in decimal.)
- 7 12 km = _____ m
- 3 58 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
2
14 h = 120 + 15 = 135 min
(b)
620 m =
30100 m = 0.3 m
9 m + 0.3 m = 9.3 m
(c)
1 km = 1000 m
7 km = 7000 m
12 km =
12 x 1000 = 500 m
7
12 km
= 7000 + 500
= 7500 m
(d)
1 kg = 1000 g
3 kg = 3000 g
58 kg =
58 x 1000 = 625 g
3
58 kg
= 3000 + 625
= 3625 g
Answer(s): 135, 9.3, 7500, 3625